Let’s talk about how the hard water gets treated. According to Waterscience:

Part of the Cleo’s unique 4 layer filtering system is the hardness-removal layer- a combination of natural MicroSieve Zeolites and food grade anti-scalant media, which ensures that hard-water salts are filtered, reduced and washed away and don’t stick to your skin.

As for chlorine removal, that happens in the 3rd filtration stage, which is made using patented KDF technology. Going through the KDF website made the scientific process clear.

Let me explain:

The KDF media contains a unique proportion of Copper and Zinc which reacts with the impurities in water and filters them out. The process is called oxidation-reduction(redox).

This basically means that there is a reaction between oppositely charged particles which either creates a harmless component that gets passed on with the filtered water or that the harmful components react and form deposits on the filter medium, thus removing them from the water supply.

What that means for us is- free chlorine in water changes into harmless, water-soluble chloride and passes out along with the filtered water. And if there are any heavy metals in your water, they’ll get filtered out by the cartridge.

That’s pretty much all you need to know!

CLEO SFW 815 Shower Filter Installation:

Added Recommendation- CLEO SFU 717 Tap Filter

Remember everything I said about showering in hard and chlorinated water?

It still stands true when you’re taking a bucket-bath or even washing your hands at the sink!

It just takes a few seconds for the chlorine in water to absorb into your skin.

That’s why, along with the CLEO SFW 815, I recommend the CLEO SFU 717. It’s more versatile than the 815 as it can be used as a shower AND tap filter, both.

Apart from it’s multi-functionality and sleeker design – there’s no other difference between the CLEO SFU 717 and SFW 815 filters. They both function on the same technology and even use the same filter cartridges.

If you want to use it as a shower filter, it’s easy to manually attach it to any standard 1/2″ shower arm. In case you have a non standard tap and you want to use it as a tap filter, you’ll need to buy this attachment – a 28 mm aerator-which is quite cheap, thankfully.

You can read more about the CLEO SFU 717 shower & tap filter in my detailed review

Final Word

CLEO has improved the quality of my hair drastically. I used to have constant, year-round dandruff and hair fall. My hair had been growing patchy at the sides!

6 months later- it’s growing normal again, and the patches have filled out. I’ll be honest- while my hair-fall and dandruff hasn’t completely disappeared, it’s still better than it used to be.

After you get to know just how many contaminants are present in your shower water, you realize that a shower filter is not a luxury.